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ISSN 0536-1028 (Print)              ISSN 2686-9853 (Online)  

УДК 622 23.05 DOI: 10.21440/0536-1028-2019-4-106-113

Tauger V. M., Leontiev A. A. The calculation of heat exchange processes in the conveying pipe of a skip pneumatic winder. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2019; 4: 106–113. DOI: 10.21440/0536-1028-2019-4-106-113

Introduction. The article considers thermodynamic processes in the conveying pipe of a skip pneumatic winder. Research aim is to analyse the establishment of temperature regime of pipeline’s operation and estimate the infl uence of air refrigeration on the velocity of a skip in the conveying pipe of a skip pneumatic winder.
Methodology. A mathematical model has been built of “mining blower–skip–lifting pipeline–surrounding media” system, which will make it possible to get the dependence of conveying medium temperature and loaded skip velocity on depth. The formulae are introduced to estimate pipeline wall heating and air refrigeration inside the pipeline. The ratio has been found, which makes it possible to determine the time of heating upon the expiry of which the process of heat exchange in the initial part of the pipe will be steady.
Results. The relevance of the problems has been justifi ed. Dependences of air-fl ow rate and air velocity in the pipeline on the vertical height coordinate are presented together with skip winding velocity variation conditioned by air fl ow refrigeration. The solution to the inverse problem is described: the calculation of air blowing station capacity required to provide the calculated value of average velocity, the results of which will allow to determine the value of mining blower capacity which provides for skip calculated average winding velocity, predetermined cycle duration, and unit capacity.
Summary. The ratios, obtained as a result of the calculation, make it possible to determine the value of mining blower capacity required to provide for skip calculated average winding velocity, predetermined cycle duration, and unit capacity.

Key words: winder; skip; pneumatic system; pipeline; heat exchange processes; mathematical model; mine winding.

4. Tauger V. M., Volkov E. B., Kholodnikov Iu. V. Skip pneumowinding plant with advanced energy efficiency. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2017; 2: 77–83. (In Russ.) 5. AAB AB – Mine Hoist Systems. Available from: http://www.mining-technology.com/contractors [Access date 20th December 2018]. 6. Industrial Siemens air blowers and turbo blowers. Available from: http://www/bibliotecar.ru [Access date 17th December 2018]. 7. Siemens air blowers and compressors (HV-turbo). Available from: https://swedepump.by/blower%20 and%20siemens%20(hv-turbo)%20compressor.html [Access date 18th December 2018]. 8. Mazo A. B. The basics and the methods of calculating heat transfer. Kazan: Kazan university Publishing; 2013. (In Russ.) 9. Bogdanov S. N. Refrigeration engineering. Air conditioning. Properties of the matter. St. Petersburg: SPbAKhPT Publishing; 1999. (In Russ.) 10. Valeev A. R. Thermal modes of pipelines. The problem of accounting oil and gas heating in the pipelines. Available from: http://ogbus.ru/files/ogbus/authors/Valeev/Valeev_1.pdf [Access date 18th December 2018]. 11. Belokon N. I. The framework of thermodynamics. Moscow: Nedra Publishing; 1968. (In Russ.) 12. Ovsiannikov M. I., Orlova E. G., Kostylev I. I. Thermal engineering technical thermodynamics and heat transfer. St. Petersburg: Nestor-Istoriia Publishing; 2013. (In Russ.) 13. Mikheev M. A., Mikheeva I. M. The basics of heat transfer. Moscow: Energiia Publishing; 1977. (In Russ.)

 

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Under construction

In 1957, the Ministry of Higher Education of the USSR made a decision to create two series of university scientific journals: “Scientific Reports of Universities. Mining.” and “News of the Higher Institutions. Mining Journal”. The Moscow Mining Institute was commissioned to produce the first title and the Sverdlovsk Mining Institute the second title (Order of the USSR Ministry of Higher Institutions of August 20, 1957, № I-86). The first issue was published in January 1958.

Thereafter both publications became one and from 1959 “News of the Higher Institutions. Mining Journal”, published by the Sverdlovsk Mining Institute named after V. V. Vakhrushev, has become a major periodical for mining universities, covering the issues of mining sciences, theory, technology and the engineering of mining.

Following the decree of the Ministry of Higher Education of the USSR: “... the publication of this journal will provide academic staff of mining schools and departments with more opportunities for the publication of scientific papers; it will facilitate organization of an extensive exchange of scientific and technical information between universities, research and development and design institutions and mining companies in order to promote scientific and technological progress and improve the quality of engineers and scientists for the mining industry”.

The first editor-in-chief, Head of the Department of Mine Construction of the Sverdlovsk Mining Institute, Doctor of Technical Sciences, Professor Sergei Fedorov played a significant role in creation of the journal. He designed the structure of the journal, formed the first editorial board and the technical revision team. In 1958-1959 the journal was edited by Dr. Sergei Volotkovski, Head of the Department of Electrification of Mining Enterprises.

For over 40 years the editor-in-chief was Professor Abram Trop. He was the Head of the Department of Automation of Production, an eminent scholar, a true patriot of mining education, founder and director of an established scientific school from which about 200 Candidates of Sciences have graduated

Over the years talented scientists and renowned experts in their fields, including Petr Vaganov, Vitali Simanov and Lev Sorokin, worked as deputy editors-in-chief and editorial board members. Currently Oleg Latyshev, Dr. of Technical Sciences, Professor of the Department of Mine Construction of the Ural State Mining University, a renowned expert in the field of rock physics holds this position.

From 2001 to 2009 Professor Ivan Dementiev, former Head of the Department of the Development of Ore Deposits, Vice President for Academic Affairs and Rector of the Ural State Mining and Geological Academy (now USMU) held the position of the editor-in-chief.

Since 2009 Professor Mikhail Viktorovich Kornilkov, Dr. of Technical Sciences, Head of the Department of Mine Construction, an expert in repairing underground mine workings, in addition to the technology and safety of blasting operations, and Rostechnadzor industrial safety expert held the post of the editor-in-chief.

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